GW Security VD1004HDSDI 4 Channel 1080p DVR 1920&times;1080 High Resolution for HD-SDI Security Camera System with 2TB Hard Drive Pre-Installed (Black) HD-SDI High Definition 4 Channel (2TB) DVR - 19201080P HD Pixel Support mobile surveillance by phones with Android, BlackBerry, WinCE, Symbian, and iPhone ,HDMI & VGA Support IE browser to remote view HD-SDI DVR will Record HD-SDI 720P/1080P Cameras Located Locally or Remotely 1 Year Warranty and Free Life Time Tech Support From U.S.A